I'm definitely in the feruchemy camp for my current real life settings. I work and office job, 40 hours sitting and doing easy easy work that requires very little focus or thought. Ideal for storing any sensory attribute, speed, mental speed, even health. I could stand to feel crappy for a while just sitting at a desk in exchange for more health later. Also storing a lot of health would be a convincing way to get a day off if you really needed.
Storing weight would also be less disorienting while sitting as would speed, though my typing would suffer. My job requires no strength at all so that's a check. With my shift being 8pm-6am wakefulness storage would be a great way to sleep on those annoyingly bright days and I could tap it on especially slow shifts to avoid falling asleep mid-call (yes I've done that).
Now bendalloy is extremely appealing to me. I find eating on a regular basis to be very tedious and I just don't care for it. I would love to have one daily feast of all my required calories and then be done with it, bendalloy on a slow tap throughout the day as needed. It's like a dream come true for me.
So yeah. Feruchemy is my jam.

There was a WoB in response to asking if shardplate is spren-related but I can't remember where I saw it. For all I know it could have been a RAFO. I just remember seeing it somewhere. I'll edit if I find it, but does anyone else have it's source?

Haha, well... if they can't control the digestion then yes that does seem pretty dangerous lol. I assume they have control over it though or they'd never be able to make prolonged contact with a human, which it seems likely they would have had to especially back in tFE when they made a career of impersonating real people in their real lives.

Weren't they genderless though? I at least don't think they were all male since any human could be turned into one. Seems unlikely they'd only choose men.
But this is getting off topic I guess. From what I've read in other forums, kandra seem to be able to manipulate their bodies on a cellular level. It seems possible that, if one were skilled enough, they could create the means to procreate. Is the question just whether the mix of kandra/human dna would be viable?

Which is what I assumed, though I don't remember that ever being mentioned directly but I could just be forgetting it. Did Harmony make this change? Because I was pretty sure they weren't able to breed in tFE times.